This might be a bit startling, but don’t worry – you want to view the film negatives as positives, i.e. On iPhone, go to Settings > General > Accessibility > Display accommodations > Invert colors.
You’ll use your iPhone to see the film negatives. Now you need to get a blank white screen. Whether using iPad, laptop or TV, increase screen brightness (On iPad: Settings > Display & Brightness). If you don’t have an iPad, you could use your computer screen (or, push come to shove, TV screen). “Uniformly” is important, so unless you are into photography gear and have a proper light box, you must rig up something simpler. You need a light source to uniformly illuminate the negatives from behind. an iPhone, to serve as the negative viewer.an iPad (or computer) to back-light the negatives.Here is a much better way to do it, and it’s really easy! You’ll need: Normally, you would hold the film against a window or a light source, then try to figure out what’s in there. Have a box or envelope of negative film strips lying at home? Curious what they contain? Maybe you’d like to select and print photos from them? But how about film negatives and Kodachrome slides? If you have film negatives of old photographs, here is a neat trick to view them as positives, using just your iPhone and iPad! No app needed. Our previous post explained how to scan photos with iPhone or iPad and Pic Scanner Gold app.